Why? If anything i wish we can have more and more players from eastern europe plus more ex-Yugoslav's, less and less from south america (specifically brazil).
Serie A was at its best when there were more of them here. Names like nedved, boksic, Savicevic, Jugovic, Shevchenko, Mihajlovic plus a pretty long list. They were all great players that added "alot" to serie A.
To me they're the perfect professionals. They got skills, work pretty hard, tough mentally (really matters) plus they have the professional attitude. All the things that is needed in a football player to be a success.
Brazilians as wonderful talents as they are (the best talents out there) they've had a shit attitude (atleast the newer generation of them) Robinho, adriano, ronaldinho, melo....Am Not generalizing here because there were great brazilians that graced this league before but the newer generation seems to be a bit off (even pele mentioned that).
All in all i'd prefer an eastern European talent over a Brazilian. IMO they are lesser of a gamble.